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Finding the Fourth Proportional to 96,115.60, 144,000.60 and 82,291.60

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Solution

The fourth proportional to 96,115.60, 144,000.60 and 82,291.60 is: 123,289.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,115.60 : 144,000.60 = 82,291.60 : x
  2. Step 2: Convert to fraction form
    96,115.60/144,000.60 = 82,291.60/x
  3. Step 3: Cross multiply
    96,115.60x = 144,000.60 × 82,291.60
  4. Step 4: Simplify right side
    96,115.60x = 11,850,039,774.96
  5. Step 5: Solve for x
    x = 11,850,039,774.96/96,115.60
  6. Step 6: Final answer
    x = 123,289.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.